نوع مقاله : مقاله پژوهشی
1 دانشجوی کارشناسی مهندسی شیمی/ پردیس دانشکدههای فنی، دانشگاه تهران
2 دانشیار /دانشکده مهندسی شیمی و رئیس کرسی یونسکو در بازیافت آب، پردیس دانشکده های فنی، دانشگاه تهران
عنوان مقاله [English]
Urban and industrial activities lead to high amount of pollution in the produced wastewater. Direct discharges from such sites to the environment is not legal and sufficient treatments are needed. Discharge criteria in some cases are limited to the maximum and minimum allowable amounts. In some other cases certain standards with regards to the best available technologies and local and geographical considerations are applied. Standard as a word means a criterion or an index or any statement that includes regulations or guidelines or characteristics which are scientifically approved for a certain purpose or activity and are also verified by official authorities. The aim of a standard is to reach a defined level of discipline in a society. Standard policies in the EU for the management of municipal and industrial effluents in the form of a comprehensive program in EU is reviewed here. Finally the need for such standards and regulation in Iran is discussed and necessity of defining a comprehensive action for management of effluents in the country is emphasized.